Advertising apparatus



May zo 1924.

W. H. MCDONALD ADVERTISING APPARATUS Filed May 14. l1923 J J h\\\\\ ga 'a kw MM INI/ENT 0R ATTORNEY Patented May 20, 1924n WILLIAM. H. MODONALD, OF SALT LAKE CITY, UTAH.

ADVERTISING APPARATUS.

Application f iled May 14, 1923.

To all whom it may cof/zoem.'

Be it known that I, WILLIAM H. Molou. ALD, a citizen of the United States, residing at Salt Lake City, in the county of Salt` Lake and State of Utah, have invented certain new and useful Improvements in Advertising Apparatus, of which the following is a specification.

My invention relates to advertising apparatuses, and has for its object to provide a simple, economically constructed apparatus in which a plurality of advertising cards may be carried and each successively displayed for a limited time, and then removed and others of said cards brought into sight and similarly displayed.

These objects I accomplish with the apparatus illustrated in the accompanying drawings, in which similar letters andnumerals of reference indicate like parts throughout the several views, and as described in specification and pointed out in the appended claims.

In the drawings in which I have shown a Substantial embodiment of my invention, Figure 1 is a side elevation of the case with a number of cards shown inr a sight opening therein, parts cut away. Figure 2 is a transverse section of the case, and an end elevation of the card carrying drum and the mechanism for intermittently moving said drum on its axis. Figure 3 is a fragmentary view of the sign suspending means. Figure 4.- is an edge or end elevation of the same, Figures 3 and I enlarged.

The invention consists of a case A, having a rectangular sight opening B therein, with a semicylindrical reflector 1 offset in front of said sight opening, whereby the rays of light from one or more electric bulbs 2 may be directed by said reflector 1, on two or more cardboard signs 3 and 4;, preferably about ten by fourteen inches in size, which are suspended behind the sight opening B. The said signs 3 and 4 are suspended from a drum D by means of rings 5, which rings are passed through perforations 6 near the longer edges of said signs. The said rings 5 are engaged with a leather strap 7, several of which are fastened around the said drum D. The said drum I) is mounted in Serial No. 638,733.

said case A by an axle or shaft 8 which is journalled within said drum. The said shaft 8 has a gear wheel 9 secured thereon, the teeth of which are engaged by a spring detent 10 to prevent backward rotation of said drum. A motor M drives the pinion pulley 11 which engages by belt 12 with another pulley 13 on the shaft of which is secured and rotated thereby a worm 14 which drives the worm gear 15, having but two teeth thereon, which teeth engage with the teeth of said gear wheel 9, and when said train of gears are set in motion by the motor M the said drum will be given an intermittent rotation on its axis, and the said signs will 4each becarried around by said drum and eX- posed to view in the sight opening, preferably for about fifteen seconds, and when the said two teeth of the worm gear 15 are brought into engagement with the teeth of the gear wheel 9, the drum D will be partially rotated and other signs 3 and 4 will be brought into view in the sight opening B. The said signs 3 are to be suspended from the end portions of said drum, and are to advertise business affairs, while the signs L medially suspended from the drum, may show scenery, photos or other attractive views to arrest the attention of the casual observer who may then read the advertisements displayed on the signs 3.

I-Iaving thus described my invention I desire to secure by Letters Patent and claim 1. An advertising apparatus comprising a case having asight opening in one side thereof; a longitudinally disposed reflector adjacent said sight opening; illuminating means in said case adapted to emit rays of light against said reflector and on signs displayed `in said sight opening; a drum longitudinally mounted within said case; a plurality of flexible strips circumferentially secured on the periphery of said drum; signs suspended from said strips; and means to intermittently rotate said drum to bring the signs successively behindl said sight opening.

2. An advertising apparatus comprising a case having a sight opening in one side thereof; a longitudinally disposed reflector semi-cylindrical in cross section and adjacent said sight opening; electric lights mounted Within said case and behind said reflector; a drum longitudinally journallecl for rotation Within said case; a plurality of eXible strips oiioumferentially secured 5 around said drum, and having rings suspended from said strips; signs suspended from said drum by being engaged with said rings; and means to .intermittently rotate said drum to bring the suspended signs successively behind said sight opening. l0

In testimony whereof I have atixed my signature.

WILLIAM H. MCDONALDt 

